Answer:
Your heart has to work more to pump blood through your body faster
Explanation:
Answer:ATP, or adenosine triphosphate, is chemical energy the cell can use. It is the molecule that provides energy for your cells to perform work, such as moving your muscles as you walk down the street. But cellular respiration is slightly more complicated than just converting the energy from glucose into ATP.
Explanation:
An autotroph is an organism that can produce it's own food. For example, a plant is an autotroph, as it uses photosynthesis to produce is food. There are also some autotrophs that are not plants, so don't get confused between the two!
D - the theory of natural selection states that the population will be narrowed as "less fit" organisms die and "more fit" organisms survive, passing on their beneficial genes to offspring. Therefore, more organisms are born than can survive.
Answer: a niche is a role that an organism plays in an environment. If you want a dictionary definition, here it is.
Explanation:
a position or role taken by a kind of organism within its community. Such a position may be occupied by different organisms in different localities, e.g., antelopes in Africa and kangaroos in Australia
